Supercell over Laramie
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Wyoming Snow Precipitation Update

United States Natural Resources Water and Climate Center Department of Conservation Portland, Oregon Agriculture Service S N O W - P R E C I P I T A T I O N U P D A T E Based on Mountain Data from NRCS SNOTEL Sites As of SUNDAY: MARCH 12 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 20.0 17.0 118 24.0 19.7 122 COTTONWOOD CREEK 7600 26.1 20.8 125 28.3 24.7 115 GRANITE CREEK 6770 19.7 17.5 113 21.7 18.4 118 GRASSY LAKE 7265 35.0 32.1 109 37.3 32.9 113 GROS VENTRE SUMMIT 8750 10.9 12.6 87 11.8 11.6 102 LEWIS LAKE DIVIDE 7850 37.9 32.1 118 36.6 33.5 109 PHILLIPS BENCH 8200 29.5 25.9 114 30.1 26.3 114 SALT RIVER SUMMIT 7600 15.0 13.1 115 17.4 16.9 103 SNAKE RIVER STATION 6920 19.6 17.9 109 24.6 20.6 119 SPRING CREEK DIVIDE 9000 28.1 23.9 118 -M 24.0 * THUMB DIVIDE 7980 17.0 17.0 100 17.4 17.1 102 TOGWOTEE PASS 9580 22.4 22.3 100 23.5 22.2 106 TWO OCEAN PLATEAU 9240 32.5 25.1 129 24.8 25.0 99 WILLOW CREEK 8450 31.8 27.4 116 35.7 29.0 123 ----- ----- Basin wide percent of average 113 112 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 19.7 21.4 92 17.3 18.2 95 BLACK BEAR 8170 45.4 35.6 128 -M 36.0 * CANYON 8090 13.5 12.4 109 15.8 13.9 114 FISHER CREEK 9100 37.1 31.7 117 34.4 32.8 105 MADISON PLATEAU 7750 24.9 22.7 110 28.6 23.9 120 NORTHEAST ENTRANCE 7350 9.3 10.4 89 11.3 11.5 98 PARKER PEAK 9400 16.5 19.5 85 14.9 14.7 101 SYLVAN LAKE 8420 15.9 20.2 79 20.1 19.0 106 THUMB DIVIDE 7980 17.0 17.0 100 17.4 17.1 102 TWO OCEAN PLATEAU 9240 32.5 25.1 129 24.8 25.0 99 WHISKEY CREEK 6800 14.9 15.6 96 21.3 18.7 114 WHITE MILL 8700 23.7 21.9 108 21.3 24.3 88 WOLVERINE 7650 8.1 11.2 72 8.2 11.8 69 ----- ----- Basin wide percent of average 105 102 WIND RIVER BURROUGHS CREEK 8750 12.4 13.3 93 14.6 14.7 99 COLD SPRINGS 9630 4.5 7.8 58 7.3 9.2 79 DEER PARK 9700 15.5 15.1 103 18.8 19.3 97 HOBBS PARK 10100 9.7 12.8 76 10.2 11.0 93 LITTLE WARM 9370 8.0 10.4 77 10.7 11.8 91 SOUTH PASS 9040 14.9 15.1 99 15.6 16.3 96 ST. LAWRENCE ALT 8620 3.0 6.4 47 5.7 7.7 74 TOGWOTEE PASS 9580 22.4 22.3 100 23.5 22.2 106 TOWNSEND CREEK 8700 5.6 7.4 76 8.5 9.9 86 ----- ----- Basin wide percent of average 87 94 BIGHORN BASIN BALD MTN. 9380 13.4 17.3 77 10.4 15.3 68 BEAR TRAP MEADOW 8200 4.6 4.8 96 6.5 7.1 92 BLACKWATER 9780 20.0 22.0 91 18.1 18.4 98 BONE SPRINGS DIV 9350 12.1 14.1 86 11.9 12.7 94 EVENING STAR 9200 22.6 26.8 84 25.0 23.1 108 GRAVE SPRINGS 8550 7.7 8.0 96 9.7 8.5 114 KIRWIN 9550 8.6 9.9 87 9.2 9.9 93 MARQUETTE 8760 1.7 7.4 23 6.1 8.3 73 MIDDLE POWDER 7760 10.2 9.9 103 8.7 10.6 82 OWL CREEK 8975 2.2 4.6 48 4.2 4.9 86 POWDER RIVER PASS 9480 8.3 9.5 87 9.8 10.9 90 SHELL CREEK 9580 12.0 12.7 94 11.3 11.7 97 SYLVAN LAKE 8420 15.9 20.2 79 20.1 19.0 106 SYLVAN ROAD 7120 9.3 12.0 78 14.9 16.4 91 TIMBER CREEK 7950 1.5 4.8 31 4.1 6.1 67 YOUNTS PEAK 8350 -M 15.5 * 15.6 14.6 107 ----- ----- Basin wide percent of average 82 94 SHOSHONE RIVER BLACKWATER 9780 20.0 22.0 91 18.1 18.4 98 EVENING STAR 9200 22.6 26.8 84 25.0 23.1 108 KIRWIN 9550 8.6 9.9 87 9.2 9.9 93 MARQUETTE 8760 1.7 7.4 23 6.1 8.3 73 SYLVAN LAKE 8420 15.9 20.2 79 20.1 19.0 106 SYLVAN ROAD 7120 9.3 12.0 78 14.9 16.4 91 YOUNTS PEAK 8350 -M 15.5 * 15.6 14.6 107 ----- ----- Basin wide percent of average 79 99 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.6 4.8 96 6.5 7.1 92 BIG GOOSE 7990 5.2 8.5 61 7.4 7.4 100 BONE SPRINGS DIV 9350 12.1 14.1 86 11.9 12.7 94 BURGESS JUNCTION 7880 8.2 9.8 84 9.4 10.5 90 CLOUD PEAK RESERVOIR 9860 10.7 11.1 96 9.6 10.9 88 DOME LAKE 8880 8.7 10.3 84 9.7 11.3 86 GRAVE SPRINGS 8550 7.7 8.0 96 9.7 8.5 114 HANSEN SAWMILL 8360 3.2 5.7 56 5.3 7.0 76 MIDDLE POWDER 7760 10.2 9.9 103 8.7 10.6 82 POWDER RIVER PASS 9480 8.3 9.5 87 9.8 10.9 90 SUCKER CREEK 8880 -M 9.9 * -M 11.6 * TIE CREEK 6870 3.9 5.6 70 8.5 8.6 99 ----- ----- Basin wide percent of average 85 91 BELLE FOURCHE BLIND PARK 6890 6.5 8.0 81 9.5 9.9 96 COLE CANYON 5910 3.6 5.5 65 7.9 -M * NORTH RAPID CREEK 6130 5.4 7.3 74 7.2 7.9 91 ----- ----- Basin wide percent of average 75 94 UPPER N. PLATTE RIVER COLUMBINE 9160 28.5 23.4 122 30.1 22.5 134 DIVIDE PEAK 8860 17.4 17.2 101 20.0 18.3 109 ELK RIVER 8700 18.7 17.4 107 19.2 17.4 110 JOE WRIGHT 10120 19.5 18.6 105 23.2 21.9 106 NORTH FRENCH CREEK 10130 30.3 24.9 122 29.4 21.8 135 OLD BATTLE 9920 33.7 28.6 118 37.4 30.7 122 SAGE CREEK BASIN 7850 12.4 10.0 124 13.2 10.7 123 SOUTH BRUSH CREEK 8440 11.4 11.3 101 15.0 14.4 104 TOWER 10500 47.3 40.4 117 44.3 34.3 129 WEBBER SPRINGS 9250 25.5 23.7 108 31.0 23.8 130 WILLOW CREEK PASS 9540 11.1 10.4 107 11.9 11.3 105 ----- ----- Basin wide percent of average 113 121 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 23.2 20.6 113 19.9 19.1 104 CASPER MTN. 7850 14.8 12.2 121 15.5 12.3 126 DEADMAN HILL 10220 14.3 14.1 101 15.6 14.6 107 DEER PARK 9700 15.5 15.1 103 18.8 19.3 97 LAPRELE CREEK 8375 8.9 9.8 91 9.8 10.9 90 RENO HILL 8500 14.0 11.7 120 15.3 12.7 120 ROACH 9700 14.1 15.0 94 15.5 16.2 96 SAND LAKE 10050 29.3 27.9 105 28.2 21.0 134 SOUTH PASS 9040 14.9 15.1 99 15.6 16.3 96 WINDY PEAK 7900 6.8 6.9 99 8.9 9.2 97 ----- ----- Basin wide percent of average 105 108 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 12.7 10.9 117 14.9 13.6 110 DIVIDE PEAK 8860 17.4 17.2 101 20.0 18.3 109 OLD BATTLE 9920 33.7 28.6 118 37.4 30.7 122 SANDSTONE RS 8150 14.4 13.8 104 19.6 16.8 117 WHISKEY PARK 8950 34.2 26.6 129 30.9 25.3 122 ----- ----- Basin wide percent of average 116 117 UPPER GREEN RIVER BIG SANDY OPENING 9080 13.5 13.0 104 13.6 12.1 112 BLIND BULL SUM 8900 25.6 25.1 102 19.2 20.3 95 EAST RIM DIVIDE 7930 10.0 11.9 84 10.5 10.9 96 ELKHART PARK G.S. 9400 12.1 12.0 101 13.0 11.8 110 GROS VENTRE SUMMIT 8750 10.9 12.6 87 11.8 11.6 102 KENDALL R.S. 7740 13.5 13.6 99 14.3 13.3 108 LOOMIS PARK 8240 17.6 15.8 111 17.9 15.8 113 NEW FORK LAKE 8340 9.9 10.3 96 9.5 10.2 93 SNIDER BASIN 8060 16.5 13.3 124 15.4 14.6 105 SPRING CREEK DIVIDE 9000 28.1 23.9 118 -M 24.0 * TRIPLE PEAK 8500 27.3 22.6 121 27.9 22.3 125 ----- ----- Basin wide percent of average 106 107 LOWER GREEN RIVER HAMS FORK 7840 14.0 11.9 118 12.7 11.1 114 HEWINTA 9500 11.2 10.1 111 13.6 12.7 107 HICKERSON PARK 9100 4.1 6.3 65 6.6 6.8 97 HOLE-IN-ROCK 9150 6.3 6.2 102 7.2 6.4 112 INDIAN CREEK 9425 28.1 24.5 115 -M 22.7 * KELLEY R.S. 8180 18.6 15.3 122 20.3 18.4 110 STEEL CREEK PARK 10100 14.0 13.9 101 15.4 14.1 109 ----- ----- Basin wide percent of average 109 109 UPPER BEAR RIVER BUG LAKE 7950 22.1 18.7 118 19.6 17.4 113 HAYDEN FORK 9100 18.9 14.5 130 22.2 18.6 119 KELLEY R.S. 8180 18.6 15.3 122 20.3 18.4 110 LILY LAKE 9050 13.2 11.7 113 14.6 15.5 94 MONTE CRISTO 8960 30.1 27.0 111 28.8 22.7 127 SALT RIVER SUMMIT 7600 15.0 13.1 115 17.4 16.9 103 TRIAL LAKE 9960 26.5 22.5 118 24.7 22.2 111 ----- ----- Basin wide percent of average 118 112 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Average Snow Water Equivalent and Total Precipitation values If the Basin wide percent of average value is flagged as potentially invalid, care should be taken to evaluate if the value is representative of conditions in the basin. The SNOW WATER EQUIVALENT Percent of Average represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the average value for those sites on this day. The TOTAL PRECIPITATION Percent of Average represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the average value for those sites on this day. Contact your state water supply staff for assistance. Reference period for average conditions is 1971-2000. Provisional data, subject to revision. ---------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Normal Snow Water Equivalent and Total Precipitation values If the Basin Index (%) value is flagged as potentially invalid, care should be taken to evaluate if the value is representative of conditions in the basin. The SNOW WATER EQUIVALENT Percent of Median represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the Median value for those sites on this day. The TOTAL PRECIPITATION Percent of Average represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the Average value for those sites on this day. Contact your state water supply staff for assistance. Medians and averages are calculated for the period 1981-2010. Provisional data, subject to revision. * Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median for the day is less than 10% of the maximum median value for the year. * Basin - More than half of the sites within the basin are flagged with *, preventing the calculation of a meaningful basin index. The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians (for snow water equivalent) or averages (for precipitation) and the resulting fraction multiplied by 100.